US1219753A - Talking-machine. - Google Patents

Description

J. B. MARSHALL.

TALKING MACHINE. APPLICATION FILED FEB. a. 1916.

Patented Mar. 20, 1917.

nventor: mmrslzdq Jttorzugy Machines, of which the following is a speci- UNITED STATES PATENT orries,

.rosErH IB. MARSH-ALL, or BRIDGEPORT, coNNEcrion'r, ASSIGNORTO REX TALKING MACHINE CORPORATION, or WILMINGTGN, DELAWARE, A CORPORATION or VIR- GINIA.

Specification of Letters Patent.

TALKING-MACHINE.

To all whom it may concern:

Be it known that I, Josnrii B MAasiiALL, a citizen of the United States, residing in the city of Bridgeport, in the county of Fairfield and State of Connecticut, have invented certain Improvements in Talkingfication.

This improvement in talking machines relates more particularly to the means for supporting and connecting the tone arm so as to secure the desired limited lateral and vertical oscillatory movement thereof in a simple, convenient and efficient manner.

In the accompanying drawings, Figure 1 is a broken sectional side elevation of a part of a talking machine embodying my improvemeiits; Fig. '2 is a sectional side View taken on the line 2-2 of Fig. 1; Fig. 3 IS an irregular vertical sectional view taken through the parts shown in Fig. 2-; Fig. 4 is a bottom plan view of the parts oi myvin provement directly connected with the tonearmfand Fig. 5 1s a top plan view of 'the 4 tone arm supporting device to be fixedisiOn the deck of the machine.

My improvements, as illustrated in th drawings, are embodied in a talking inachine comprising a case 1, containing the deck 2, the horn 3, and the turn-table 4, of usual character.

A tubular supporting device 5 is provided with thcbasc flange 5, which is fixed to the deck by screws 5 and contains the sound passage 5, which registers with the mouth 3 of the horn, the [support containing the crQss piece'Z which is provided with the vertical bearing 5 i The tone arm 6, having the sound box 7 and stylus mechanism 8 connected with its forward end, is provided with a ring or collar 6 which is fixed on the extremity of the downward extending elbow 6 at the rear end of the tone arm, and this collar or ring is disposed concentrically within a ring or'collfar 9, which is disposed within the tubular support 5; a pin 10 extending through the parts (5,36", and 9, whereby the tone arm is pivotally supported so that it can oscillate in a vertical plane. Y

The ring 9 -is provided with a bottom cross piece or bar 9 which extends in the,

general direction of the tone arm, with a bearing 9 which is adapted to rest on the top of the bearing 5 and with a Vertical spindle 9 which slips through and revolves in the bearing 5 V l The part 9 has a downwardly extending stud 9 which is fixed to the part '9? and adapted to make contact, at the extremities of its oscillatory movement, with the part 5. y

The horizontal movement of the tone arm is therefore limited by the engagement of the stud 9 with the cross-bar 5 at each extremity of the arc of oscillation, and the vertical movement of the tone arm is limited to a definite are by the contact of the part (3* with the part 9 Having described my invention, I claim:

1. In a talking machine, the combina tion of a. hollow support provided with a cross piece, a ring adapted to turn on said cross piece about a vertical axis, a projec- Ition on said ring adapted for engaging said hollow member fixed on said deck in coinmunication with said horn, said member containing a cross piece, provided with a vertical bearing, a ring adapted to oscillate about a vertical axis within said member,

said ring containing a cross piece provided with a vertical bearing coacting with said cross piece and bearing first named, and a tone arm having an end thereof journaled within said ring on a horizontal axis. a,

3. In a talking machine,"the combination with a machine deck and horn, of a 95 vertically disposedhollow member fixed to Patented Mar. 20, 1.917.,

said deck in communication with said horn,

said member containing a cross piece provided with a vertical spindle bearing, a ring jonrnaied Within said member on said cross piece, said ring haying a cross piece and a spindle thereon journaled in said hearing, :1 stud on said ring and adapted 1'01 said cross iece first named to limit the ziscillatory movement of said ring, and e tgine arm having an end thereof journaled/in said ring on the horizontal 10 ezu'ing nieens.

In testimony whereof, I have hereunto set my name this 27 day of Janu'zu' 1916.

J. B. MAR-SHALL.

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